There have always been people on this site who think RoHS was a conspiracy. There are a few people who do not take the public health problems caused by lead very seriously.
And you can't, with a straight face, tell me that lead free solder matters, while we're still using lead acid batteries with dozens of pounds of lead in every car out there (to within a rounding error, and, yes, it includes almost all EV/PHEVs). The list of exemptions is very long.
Lead free solder is objectively worse as a solder for just about any metric related to longevity. So you have to weigh the risks of lead in solder against the reduced longevity of entire electronic devices from solder joint failures. Lots of BGA components have had problems related to their solder, and the usual result is that the entire device gets thrown out.
Lead free solder is fine. When RoHS was first implemented, a lot of manufacturers had trouble changing their processes for the new solder. The result was a plague of bad, broken solder joints.
Nowadays, lead free solder is accounted for starting in the design stage. Manufacturers have had 15+ years of experience with leadfree solder and have largely worked out the issues.
Lead-acid batteries are extensively recycled. Electronics are usually just dumped in the trash, making the lead issue much more important.
>while we're still using lead acid batteries with dozens of pounds of lead in every car out there
Mostly those cars stay outside and the batteries tend to be expensive and highly recycled, electronics on the other hand, show up everywhere and have a poor history of recycling.
Battery retailers will pay you $25 for the old one and even if you just dump it, desperate people will collect it and hump it down to the recycler to get the core refund.
Nobody wants your old soldered electronics. That stuff is nothing but trash.
All of the battery retailers around where I live (southern Indiana, USA) stopped paying for old lead-acid batteries years ago. Only the local scrap metal yard still pays for them, and they only pay $5 per battery. People only bring in their old batteries for recycling because it waives the core charge.
I have a conspiracy theory that people recommending leaded solder (And reacting hostilely to suggestions it may be dangerous) are demonstrating the effects of lead exposure.
I don't think leaded solder is dangerous to the home hobbyist, provided reasonable precautions are taken (no food, drinks, or smokes on the bench and wash your hands immediately upon getting up from the bench).
If you're repairing something that used leaded solder, you pretty much have to use leaded solder. That's fewer and fewer things post-RoHS, but when you have something older, you're going to use leaded or you're going to have a bad time.
With a decent iron and flux, hand soldering with lead-free solder is fine. All my new work is lead-free, but I have zero concerns having my kids work with leaded solder at the frequency and using the reasonable precautions.
Also the supply chain: smelting and refining. Herculaneum Missouri has acres bulldozed of what used to be homes once they learned the children were born with lead poisoning. Before the dozing citizens put up warning signs telling people to take off their shoes when they got home and not to let their kids play in the contaminated public spaces.
